Home / 321,932.72-482,909.38-161,921.32

Finding the Fourth Proportional to 321,932.72, 482,909.38 and 161,921.32

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Solution

The fourth proportional to 321,932.72, 482,909.38 and 161,921.32 is: 242,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,932.72 : 482,909.38 = 161,921.32 : x
  2. Step 2: Convert to fraction form
    321,932.72/482,909.38 = 161,921.32/x
  3. Step 3: Cross multiply
    321,932.72x = 482,909.38 × 161,921.32
  4. Step 4: Simplify right side
    321,932.72x = 78,193,322,637.90
  5. Step 5: Solve for x
    x = 78,193,322,637.90/321,932.72
  6. Step 6: Final answer
    x = 242,887.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.